Fungalpedia – Note 432, Neohortaea 

 

Neohortaea Quaedvl. & Crous

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomata.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 

Classification: Teratosphaeriaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.

Neohortaea, a new genus, was introduced with Neohortaea acidophila by Quaedvlieg et al. (2014) based on phylogenetic ITS, LSU, and RPB2 analyses. Neohortaea acidophila is the type species in Neohortaea, which is a synonym for Hortaea acidophila isolated from lignite in Germany. Neohortaea is morphologically similar to Hortaea, except that the latter has prominent annellate conidiogenous loci and conidia that develop several septa, forming chlamydospores with age (de Hoog et al. 2000, Plemenitas et al. 2008, Quaedvlieg et al. 2014). Conidiogenous cells and conidia of Neohortaea have prominent characteristics, namely integration on hyphae, reduced to conidiogenous loci, with several minute percurrent proliferations of conidiogenous cells and smooth, ellipsoidal, broadly ellipsoid to clavate, septum median, hilum truncate with minute marginal frill conidia (Quaedvlieg et al. 2014). Currently, Neohortaea includes only one species, Neohortaea acidophila.

Type species: Neohortaea acidophila (Hölker, Bend, Pracht, Tetsch, Tob. Müll., M. Höfer & de Hoog) Quaedvl. & Crous

Other accepted species: This genus is monotypic.

 

Figure 1 – Morphology of Neohortaea acidophila. a-c Conidiophores and conidia. Scale bars: a-c = 10 μm. Redrawn from Hölker et al. (2004).

 

References

Hölker U, Bend J, Pracht R, Tetsch L et al. 2004 – Hortaea acidophila, a new acid-tolerant black yeast from lignite. Antonie van Leeuwenhoek 86, 287–294.

Hoog GS de, Guarro J, Gené J, Figueras MJ 2000 – Atlas of clinical fungi, 2nd ed. Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands; University Rovira i Virgili, Reus, Spain.

Plemenitas A, Vaupotic T, Lenassi M, Kogej T et al. 2008 – Adaptation of extremely halotolerant black yeast Hortaea werneckii to increased osmolarity: a molecular perspective at a glance. Studies in Mycology 61, 67–75.

Quaedvlieg W, Binder M, Groenewald JZ, Summerell BA et al. 2014 – Introducing the consolidated species concept to resolve species in the Teratosphaeriaceae. Persoonia-Molecular Phylogeny and Evolution of Fungi 33(1), 1–40.

 

Entry by

Zhang X, Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China; Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 2 December 2024

Back to Glossary Index Page